Year	annual % growth
1961	18.41503947192355
1962	2.7135046260430755
1963	-15.893666347386585
1964	-16.08211941216021
1965	-0.3639736187580098
1966	-7.238095364507842
1967	18.367275027415147
1968	-8.118914099669666
1969	28.06468493323854
1970	11.56108475338246
1971	-0.42406044096794915
1972	-25.031587709065235
1973	-20.223465736465812
1974	33.60919192169101
1975	40.94815591028785
1976	27.025761958948053
1977	12.862634236275625
1978	14.004880672285111
1979	18.14781353915646
1980	8.133859995260593
1981	-5.02056915991146
1982	-15.964441720697593
1983	-50.03309719462138
1984	-22.810217314575425
1985	-19.964050365648376
1986	12.8691449940806
1987	27.252222912893416
1988	21.741265578390085
1989	-4.632920587950792
1990	-7.6868003989992815
1991	21.476091110221333
1992	17.44133807930237
1993	14.615789338913572
1994	6.391554779771113
1995	-5.184620345694995
1996	10.121719259228385
1997	10.103652673279598
1998	7.5675224625469895
1999	-9.99661609237647
2000	-8.971513244165237
2001	-6.896372932437316
2002	-21.556884137390583
2003	-2.4563933025745825
2004	19.016677338023655
2005	18.959639498149556
2006	13.90714180260484
2007	9.277668480379958
2008	19.31580876797028
2009	-5.836748242095922
2010	16.019823932057562
2011	6.978258041383128
2012	18.154149503230755
2013	3.7962775731833744
2014	2.405730500422166
2015	-9.238105205829356
2016	-2.0092304730477366
2017	0.9457741704563887
2018	-10.499701600071049
2019	-3.0185166019689547
2020	-1.6974944067185476
2021	19.27159056226664
2022	11.833399964524077
2023	-6.960103918645132